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<li class="navelem"><a class="el" href="../../dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li>  </ul>
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  <div class="headertitle"><div class="title">crypto.cpp</div></div>
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<a href="../../df/d84/crypto_8cpp.html">浏览该文件的文档.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="preprocessor">#include &lt;assert.h&gt;</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="preprocessor">#include &lt;stdlib.h&gt;</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span> </div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="preprocessor">#include &lt;string&gt;</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="preprocessor">#include &lt;iostream&gt;</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="preprocessor">#include &lt;openssl/aes.h&gt;</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span> </div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="preprocessor">#include &quot;<a class="code" href="../../d2/d62/crypto_8hpp.html">crypto.hpp</a>&quot;</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="preprocessor">#include &quot;<a class="code" href="../../d0/d0e/misc_8hpp.html">misc.hpp</a>&quot;</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="preprocessor">#include &quot;<a class="code" href="../../d0/d5c/malloc_shared_ptr_8hpp.html">mallocSharedPtr.hpp</a>&quot;</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span> </div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="keyword">namespace </span><a class="code hl_namespace" href="../../df/d8d/namespacewheels.html">wheels</a></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span>{</div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span> </div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="preprocessor">#ifndef OPENSSL_3X </span></div>
<div class="foldopen" id="foldopen00016" data-start="{" data-end="}">
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"><a class="line" href="../../df/d8d/namespacewheels.html#a830247691694cb1813d706f1b4db7d95">   16</a></span>std::string <a class="code hl_function" href="../../df/d8d/namespacewheels.html#a830247691694cb1813d706f1b4db7d95">encrypto</a>( <span class="keyword">const</span> uint8_t * data , <span class="keywordtype">size_t</span> len , <span class="keyword">const</span> <span class="keywordtype">char</span> * key )</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span>{</div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span>    <span class="keywordflow">if</span>( !data ) std::runtime_error( <span class="stringliteral">&quot;&quot;</span> );</div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span>    assert( key );</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span> </div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span>    std::string ret;</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span>    AES_KEY aes;</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span>    <span class="keywordtype">char</span> tmpIV[] = <span class="stringliteral">&quot;2624750004598718&quot;</span>;</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span>    uint8_t iv[ AES_BLOCK_SIZE ];</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span> </div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span>    <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i &lt; 16; i ++ ){</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span>        iv[ i ] = tmpIV[ i ];</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span>    }</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span>    <span class="keywordtype">int</span> rst = AES_set_encrypt_key( (uint8_t*)key , 128 , &amp;aes );</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span>    <span class="keywordflow">if</span>( rst &lt; 0 ){</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span>        <span class="keywordflow">throw</span> std::runtime_error( <span class="stringliteral">&quot; set aes key fail.&quot;</span> );</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span>    }</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span> </div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span>    uint8_t * __dat = ( uint8_t* )malloc( len * 3 + 1);</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span>    <span class="keywordflow">if</span>( __dat == <span class="keyword">nullptr</span> ){</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span>        <span class="keywordflow">throw</span> std::runtime_error( <span class="stringliteral">&quot; Allocate memory fail.&quot;</span>  );</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span>    }</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span> </div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span>    <span class="comment">// 执行加密</span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span>    AES_cbc_encrypt( data  , __dat , len , &amp;aes , iv , AES_ENCRYPT );</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span>    <span class="keywordtype">char</span> * __rst_data = ( <span class="keywordtype">char</span> *)malloc( len * 3 + 1);</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span>    <span class="keywordflow">if</span>( __rst_data == <span class="keyword">nullptr</span> ){</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span>        free( __dat );</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span>        __dat = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span>        <span class="keywordflow">throw</span> std::runtime_error( <span class="stringliteral">&quot; Allocate memory fail.&quot;</span>  );</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span>    }</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span>    <span class="keywordflow">for</span>( <span class="keywordtype">size_t</span> i = 0; i &lt; len; i ++ ){</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span>        sprintf( __rst_data + i * 2, <span class="stringliteral">&quot;%02X&quot;</span>, __dat[ i ] );</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span>    }</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span>    ret.assign( __rst_data );</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span>    <span class="keywordflow">if</span>( __rst_data ) free( __rst_data );</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span>    <span class="keywordflow">if</span>( __dat ) free( __dat );</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span>    <span class="keywordflow">return</span> ret;</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span>}</div>
</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span> </div>
<div class="foldopen" id="foldopen00057" data-start="{" data-end="}">
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"><a class="line" href="../../df/d8d/namespacewheels.html#a280a2018ebcd55a0349997f806a59ad5">   57</a></span>std::string <a class="code hl_function" href="../../df/d8d/namespacewheels.html#a280a2018ebcd55a0349997f806a59ad5">decrypto</a>( <span class="keyword">const</span> uint8_t * data , <span class="keywordtype">size_t</span> len , <span class="keyword">const</span> <span class="keywordtype">char</span> * key )</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span>{</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span>    assert( data );</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span>    assert( key );</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span> </div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span>    std::string ret;</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>    AES_KEY aes;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span>    <span class="keywordtype">char</span> tmpIV[] = <span class="stringliteral">&quot;2624750004598718&quot;</span>;</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span>    uint8_t iv[ AES_BLOCK_SIZE ];</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>    uint8_t* real_data;</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>    <a class="code hl_class" href="../../da/d39/classwheels_1_1malloc_shared_ptr.html">wheels::mallocSharedPtr&lt;uint8_t&gt;</a> tmp_ptr( len );</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>    real_data = tmp_ptr.get();</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>    <span class="keywordflow">for</span>( <span class="keywordtype">size_t</span> i = 0; i &lt; len; i += 2 ){</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>        <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> __tmp_data[ 3 ];</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span>        __tmp_data[ 0 ] = data[ i ];</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span>        __tmp_data[ 1 ] = data[ i + 1 ];</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span>        __tmp_data[ 2 ] = 0;</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span>        real_data[ i / 2 ] = ( uint8_t )strtoul( (<span class="keywordtype">char</span>*)__tmp_data , nullptr , 16 );</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span>    }</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span>    <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i &lt; 16; i ++ ){</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span>        iv[ i ] = tmpIV[ i ];</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span>    }</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span> </div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span>    <span class="keywordtype">int</span> rst = AES_set_decrypt_key( (uint8_t*)key , 128 , &amp;aes );</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>    <span class="keywordflow">if</span>( rst &lt; 0 ){</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>        <span class="keywordflow">throw</span> std::runtime_error( <span class="stringliteral">&quot;set aes key fail.&quot;</span>  );</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span>    }</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span> </div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>    uint8_t * __dat = ( uint8_t* )malloc( len / 2 + 1 );</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span> </div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span>    <span class="keywordflow">if</span>( __dat == <span class="keyword">nullptr</span> ){</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span>        <span class="keywordflow">throw</span> std::runtime_error( <span class="stringliteral">&quot;Allocate memory fail.&quot;</span>  );</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span>    }</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span>    memset( __dat , 0 , len / 2 + 1 );</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span>    AES_cbc_encrypt( real_data , __dat , len / 2 , &amp;aes , iv , AES_DECRYPT );</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span> </div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span>    ret.assign( ( <span class="keywordtype">char</span> *)__dat );</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span>    free( __dat );</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span>    <span class="keywordflow">return</span> ret;</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span>}</div>
</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span> </div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span><span class="preprocessor">#include &lt;openssl/evp.h&gt;</span></div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="preprocessor">#include &lt;openssl/rand.h&gt;</span></div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span> </div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span>std::string <a class="code hl_function" href="../../df/d8d/namespacewheels.html#a830247691694cb1813d706f1b4db7d95">encrypto</a>(<span class="keyword">const</span> uint8_t* data, <span class="keywordtype">size_t</span> len, <span class="keyword">const</span> <span class="keywordtype">char</span>* key) {</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span>    <span class="keywordflow">if</span> (!data)</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span>        <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">&quot;&quot;</span>);</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span> </div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span>    <span class="keywordflow">if</span> (!key)</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span>        <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">&quot;Key is null&quot;</span>);</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span> </div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span>    std::string ret;</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span>    std::array&lt;uint8_t, AES_BLOCK_SIZE&gt; iv;</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span>    <span class="keywordtype">char</span> tmpIV[] = <span class="stringliteral">&quot;2624750004598718&quot;</span>;</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span> </div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span>    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; AES_BLOCK_SIZE; i++) {</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span>        iv[i] = tmpIV[i];</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span>    }</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span> </div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span>    EVP_CIPHER_CTX* ctx = EVP_CIPHER_CTX_new();</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span>    <span class="keywordflow">if</span> (!ctx) {</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span>        <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">&quot;Failed to create cipher context&quot;</span>);</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span>    }</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span> </div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span>    <span class="keywordflow">if</span> (EVP_EncryptInit_ex(ctx, EVP_aes_128_cbc(), <span class="keyword">nullptr</span>, (<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)key, iv.data()) != 1) {</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span>        EVP_CIPHER_CTX_free(ctx);</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span>        <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">&quot;Failed to initialize encryption&quot;</span>);</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span>    }</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span> </div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span>    <span class="keywordtype">size_t</span> outlen;</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span>    <span class="keywordtype">size_t</span> ciphertext_len = len + AES_BLOCK_SIZE;</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span>    std::vector&lt;uint8_t&gt; ciphertext(ciphertext_len);</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span> </div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span>    <span class="keywordflow">if</span> (EVP_EncryptUpdate(ctx, ciphertext.data(), (<span class="keywordtype">int</span>*)&amp;outlen, data, len) != 1) {</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span>        EVP_CIPHER_CTX_free(ctx);</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span>        <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">&quot;Encryption failed&quot;</span>);</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span>    }</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span> </div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span>    ciphertext_len = outlen;</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span> </div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span>    <span class="keywordflow">if</span> (EVP_EncryptFinal_ex(ctx, ciphertext.data() + outlen, (<span class="keywordtype">int</span>*)&amp;outlen) != 1) {</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span>        EVP_CIPHER_CTX_free(ctx);</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span>        <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">&quot;Encryption failed&quot;</span>);</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span>    }</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span> </div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span>    ciphertext_len += outlen;</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span>    EVP_CIPHER_CTX_free(ctx);</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span> </div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; ciphertext_len; i++) {</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span>        ret += std::to_string(ciphertext[i]);</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span>    }</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span> </div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span>    <span class="keywordflow">return</span> ret;</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span>}</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span> </div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span> </div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span> </div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span>std::string <a class="code hl_function" href="../../df/d8d/namespacewheels.html#a280a2018ebcd55a0349997f806a59ad5">decrypto</a>(<span class="keyword">const</span> uint8_t* data, <span class="keywordtype">size_t</span> len, <span class="keyword">const</span> <span class="keywordtype">char</span>* key)</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span>{</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span>    assert(data);</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span>    assert(key);</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span> </div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span>    std::string ret;</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span>    AES_KEY aes;</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span>    <span class="keywordtype">char</span> tmpIV[] = <span class="stringliteral">&quot;2624750004598718&quot;</span>;</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span>    uint8_t iv[AES_BLOCK_SIZE];</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span>    uint8_t* real_data;</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span>    std::unique_ptr&lt;uint8_t[]&gt; tmp_ptr(<span class="keyword">new</span> uint8_t[len]);</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>    real_data = tmp_ptr.get();</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span> </div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; len; i += 2) {</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span>        <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> __tmp_data[3];</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>        __tmp_data[0] = data[i];</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>        __tmp_data[1] = data[i + 1];</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span>        __tmp_data[2] = 0;</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span>        real_data[i / 2] = (uint8_t)strtoul((<span class="keywordtype">char</span>*)__tmp_data, <span class="keyword">nullptr</span>, 16);</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span>    }</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span>    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 16; i++) {</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span>        iv[i] = tmpIV[i];</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span>    }</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span> </div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span>    EVP_CIPHER_CTX* ctx = EVP_CIPHER_CTX_new();</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span>    <span class="keywordflow">if</span> (ctx == <span class="keyword">nullptr</span>) {</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span>        <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">&quot;Create cipher context failed.&quot;</span>);</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span>    }</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span> </div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span>    <span class="keywordtype">int</span> rst = EVP_DecryptInit_ex(ctx, EVP_aes_128_cbc(), <span class="keyword">nullptr</span>, (uint8_t*)key, iv);</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span>    <span class="keywordflow">if</span> (rst != 1) {</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span>        EVP_CIPHER_CTX_free(ctx);</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span>        <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">&quot;Set cipher key failed.&quot;</span>);</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span>    }</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span> </div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span>    <span class="keywordtype">int</span> ciphertext_len = len / 2;</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span>    <span class="comment">// Calculate required buffer length for decrypted data</span></div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span>    <span class="keywordtype">int</span> plaintext_len = ciphertext_len + AES_BLOCK_SIZE;</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span>    std::unique_ptr&lt;uint8_t[]&gt; plaintext(<span class="keyword">new</span> uint8_t[plaintext_len]);</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span> </div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span>    rst = EVP_DecryptUpdate(ctx, plaintext.get(), &amp;plaintext_len, real_data, ciphertext_len);</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span>    <span class="keywordflow">if</span> (rst != 1) {</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span>        EVP_CIPHER_CTX_free(ctx);</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span>        <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">&quot;Decryption failed.&quot;</span>);</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span>    }</div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span> </div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span>    <span class="keywordtype">int</span> final_len = 0;</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span>    rst = EVP_DecryptFinal_ex(ctx, plaintext.get() + plaintext_len, &amp;final_len);</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span>    <span class="keywordflow">if</span> (rst != 1) {</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span>        EVP_CIPHER_CTX_free(ctx);</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span>        <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">&quot;Decryption finalization failed.&quot;</span>);</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span>    }</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span>    plaintext_len += final_len;</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span> </div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span>    ret.assign((<span class="keywordtype">char</span>*)plaintext.get(), plaintext_len);</div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span>    EVP_CIPHER_CTX_free(ctx);</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span>    <span class="keywordflow">return</span> ret;</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span>}</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span>}</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span> </div>
<div class="ttc" id="aclasswheels_1_1malloc_shared_ptr_html"><div class="ttname"><a href="../../da/d39/classwheels_1_1malloc_shared_ptr.html">wheels::mallocSharedPtr</a></div><div class="ttdef"><b>定义</b> <a href="../../d0/d5c/malloc_shared_ptr_8hpp_source.html#l00018">mallocSharedPtr.hpp:19</a></div></div>
<div class="ttc" id="acrypto_8hpp_html"><div class="ttname"><a href="../../d2/d62/crypto_8hpp.html">crypto.hpp</a></div></div>
<div class="ttc" id="amalloc_shared_ptr_8hpp_html"><div class="ttname"><a href="../../d0/d5c/malloc_shared_ptr_8hpp.html">mallocSharedPtr.hpp</a></div></div>
<div class="ttc" id="amisc_8hpp_html"><div class="ttname"><a href="../../d0/d0e/misc_8hpp.html">misc.hpp</a></div></div>
<div class="ttc" id="anamespacewheels_html"><div class="ttname"><a href="../../df/d8d/namespacewheels.html">wheels</a></div><div class="ttdoc">堆栈信息读取和保存记录</div><div class="ttdef"><b>定义</b> <a href="../../d3/df7/ary__str_8hpp_source.html#l00006">ary_str.hpp:7</a></div></div>
<div class="ttc" id="anamespacewheels_html_a280a2018ebcd55a0349997f806a59ad5"><div class="ttname"><a href="../../df/d8d/namespacewheels.html#a280a2018ebcd55a0349997f806a59ad5">wheels::decrypto</a></div><div class="ttdeci">std::string decrypto(const uint8_t *data, size_t len, const char *key)</div><div class="ttdoc">AES 128解密算法,CBC</div><div class="ttdef"><b>定义</b> <a href="#l00057">crypto.cpp:57</a></div></div>
<div class="ttc" id="anamespacewheels_html_a830247691694cb1813d706f1b4db7d95"><div class="ttname"><a href="../../df/d8d/namespacewheels.html#a830247691694cb1813d706f1b4db7d95">wheels::encrypto</a></div><div class="ttdeci">std::string encrypto(const uint8_t *data, size_t len, const char *key)</div><div class="ttdoc">AES 128加密算法。CBC</div><div class="ttdef"><b>定义</b> <a href="#l00016">crypto.cpp:16</a></div></div>
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